They come in many favors and often lead to compulsions. Obsessions are the bothersome, intrusive recurring thoughts. Compulsions are behaviors that attempt to get relief from obsessions. It's important to remember that everyone has some obsessive traits. What makes it a disorder is when it impairs day-to-day life.
Day-to-day life.

In brief:
Repetitive thoughts

Intrusive, usually unwanted, bothersome repetitive thoughts.

They come in many favors and often lead to compulsions. Obsessions are the bothersome, intrusive recurring thoughts. Compulsions are behaviors that attempt to get relief from obsessions. It's important to remember that everyone has some obsessive traits. What makes it a disorder is when it impairs day-to-day life.
Day-to-day life.
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